2024 Mileage Reimbursement Rate Illinois 2024. While you're free to reimburse above or below this rate, keep in mind. Enter your details to see how much you can.

In sum, the state of illinois’ mileage reimbursement rate for the use of personal vehicles will increase from 65.5 cents per mile to 67 cents per mile effective. 67 cents per mile driven for business use, up 1.5 cents.